ETA 2824

The ETA 2824-2 may be the most-used mechanical Swiss watch movement in the world. Available in five grades, the 2824 truly deserves it's title of 'tracteur.'

You'll see it in watches ranging from about $300 on up into several thousand dollars, and into the tens of thousands when heavily modified (e.g. [Ulysse Nardin]) or when paired with [Dubois-Dupraz] modules such as chronographs or [perpetual calendars].

Now that the patents have expired it's been cloned by

• Sellita as the SW200
• Seagull as the ST21
• [Hangzhou] as the Hangzhou 6000

. Almost certainly by other companies as well.

Specs

The specs have changed over the years, but here is a current snapshot:

• 25.6mm by 4.6mm
• Automatic
• Handwinding and hacking, though some grades lack hacking
• Quickset date
• 25 jewels, Etachocs
• Regulation varies by grade, up to 5 positions and temperature for the chronometer grade.
• Power reserve: 40 hours

Links

• Nice in-depth article
• ETA the company
• ETA PDF on finishes
• Comparison of ETA original with Seagull and Hangzhou clones

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